Mary Vincent was only 15 years old when she endured a brutal attack that changed her life forever. In September 1978, while hitchhiking in California, Mary was picked up by Lawrence Singleton, a 50-year-old man with a history of violence. After assaulting her, Singleton severed both of Mary's forearms and left her for dead in a ravine. Mary would manage to climb out of the ravine and seek help, ultimately surviving the ordeal.
